xfree86: remove bus state change notification callback

No one is using bus notifications now. We hope that the kernel take care of
this properly.

For other not-so-urgent-notifications (ACPI wakeups, etc) we can just register
a handler on server's scheduler (using xf86AddGeneralHandler). And for
external applications, the "trend" is to use HAL to kick notifications. So
we're already provided of enough notification schemes.

Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>

hw/xfree86/common/xf86str.h

@@ -608,18 +608,6 @@ typedef enum {
     OPERATING
 } xf86State;
 
-typedef enum {
-    NOTIFY_SETUP_TRANSITION,
-    NOTIFY_SETUP,
-    NOTIFY_OPERATING,
-    NOTIFY_OPERATING_TRANSITION,
-    NOTIFY_ENABLE,
-    NOTIFY_ENTER,
-    NOTIFY_LEAVE
-} xf86NotifyState;
-
-typedef void (*xf86StateChangeNotificationCallbackFunc)(xf86NotifyState state,pointer);
-
 /* DGA */
 
 typedef struct {